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La Roche-Posay

La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum for Face, Vitamin B5 + Hyaluronic Acid + Madecassoside, Hydrating Serum Visibly Plumps Skin, Sensitive Skin Safe, Anti Aging, Oil-Free

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, May 30
Order within 22 hours and 32 minutes
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Size: 1.01 Fl Oz (Pack of 1)


Features

  • Ultra Hydrating Hyaluronic Acid Serum for Barrier Repair: Deeply hydrates, plumps skin to the touch, and restores the moisture barrier for a supple feel, with 91% agreeing skin feels smoother instantly. ***Consumer test, 85 subjects, 2x/day application.
  • Targeted Anti-Aging & Skin Repair: A super-activated hydrating serum designed to target anti-aging concerns, reducing fine lines, dehydrated skin and improving elasticity, with **1-hour skin barrier repair. **Instrumental test.
  • Formulated for Rich, Plump Hydration: Features pure hyaluronic acid, glycerin, and vitamin B5 for optimal hydration, rich texture, and suitability for sensitive skin. Leaves skin hydrated and smooth to the touch.
  • Dermatologist Tested Face Serum for Women & Men: Clinically proven to hydrate and visibly plump skin, with 90% seeing more hydrated, supple skin and 96% reporting improved texture. ***Consumer test, 85 subjects, 2x/day application.
  • Gentle Yet Powerful for All Skin Types: Allergy-tested formula suits all skin types, including sensitive skin, delivering hydration and reducing fine lines with refined texture for an even, smoother look.
  • Tested with GLP-1 users to effectively address skin concerns. 90% saw smoother, firmer and more radiant skin*. *Consumer study after 4 weeks of using Hyalu B5 serum + cream, with consumers prescribed GLP-1 for weight loss

Description

Amazon is an authorized retailer of La Roche-Posay products. Hyalu B5 Hyaluronic Acid Serum for face is formulated with two types of Hyaluronic Acid and Vitamin B5. With high and low molecular weight Hyaluronic Acid, Hyalu B5 face serum helps lock in moisture and leaves skin feeling plump to the touch. This Hyaluronic Acid serum is an allergy tested formula with fragrance and also contains, Madecassoside and La Roche-Posay Thermal Spring Water. This anti aging serum is: suitable for sensitive skin, and dermatologist tested. Use as a daily anti-aging and Hyaluronic Acid serum for face to visibly plump, hydrate, and help reduce fine lines. Apply 4-5 drops of the facial serum morning and evening to the face and neck. Use alone or as an added boost to your favorite moisturizer. This facial serum has a rich serum texture that leaves skin feeling supple and hydrated to the touch. Ingredients: Aqua / Water. Glycerin. Alcohol Denat. . Propylene Glycol . Panthenol . Pentylene Glycol . Dimethicone . Peg-6 Caprylic/Capric Glycerides . Ppg-6-Decyltetradeceth-30 . Glyceryl Isostearate . Madecassoside . Sodium Hyaluronate . Ammonium Polyacryloyldimethyl Taurate . Disodium Edta . Hydrolyzed Hyaluronic Acid . Caprylyl Glycol . Citric Acid . XAnThAn Gum . ButylEneGLyCol . Tocopherol . Phenoxyethanol . Parfum / Fragrance. Product packaging may vary. Brand Story Recommended by 90,000 dermatologists worldwide, La Roche-Posay offers unique daily skincare developed using a strict formulation charter and stringent clinical testing for efficacy and safety, even on sensitive skin.

Is Discontinued By Manufacturer ‏ : ‎ No


Language ‏ : ‎ English


Product Dimensions ‏ : ‎ 1.5 x 2.25 x 4.25 inches; 1.06 ounces


Item model number ‏ : ‎ 6


Manufacturer ‏ : ‎ La Roche-Posay


Best Sellers Rank: #491 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #18 in Facial Serums


#18 in Facial Serums:


Customer Reviews: 4.6 4.6 out of 5 stars (35,152)


Skin Type: Oily


Product Benefits: Four Hyaluronic Acid System & Vitamin B5. Oil-Free. Allergy-Tested. Noncomedogenic. Safe for all skin types.


Target Use Body Part: Face, Neck


Scent Name: Scented


Special Ingredients: Glycerin, Hyaluronic Acid, Vitamin B5


Item Form: Serum


Skin Tone: All


Brand Name: La Roche-Posay


Number of Items: 1


Global Trade Identification Number: 26


Model Number: 6


Manufacturer Part Number: 6


Manufacturer: La Roche-Posay


Item Weight: 0.03 Kilograms


Item Volume: 3.38 Fluid Ounces


Unit Count: 1.01 Fluid Ounces


Material Features: Allergy Tested, Dermatologist Tested for Safety, Lightweight Texture, Non-Comedogenic, Sensitive Skin Tested


Active Ingredients: Hyaluronic Acid, hyaluronic_acid


Material Type Free: Oil Free, Paraben Free


Recommended Uses For Product: Four Hyaluronic Acid System & Vitamin B5. Oil-Free. Allergy-Tested. Noncomedogenic. Safe for all skin types.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Expensive but effective
Size: 1.01 Fl Oz (Pack of 1)
One of the best HA serums on the market and nice splurge when you want something French and fancy sounding. It hydrates and plumps fine lines as advertised without being heavy nor greasy. It does have a fragrance, but it is pleasant and mild. I was concerned it would irritate my very sensitive skin and rosacea, but pleasantly surprised after a month of daily use, zero problems. I use it in combination with the Double Repair moisturizer. My dermatologist has been pretty impressed with the health of my skin lately. In complete fairness, there are other HA serums on the market that are as effective, use the same ingredients and concentrations, at half to a quarter of the price (The Ordinary, for example.) YMMV ... show more
Reviewed in the United States on May 5, 2026 by Eric
    • Hydrating serum that leaves skin soft and plump
Size: 1.01 Fl Oz (Pack of 1)
Review Image by sandra M Cardenas
I bought this serum because I needed extra hydration, especially with my busy schedule and long work shifts. The texture is lightweight but very hydrating. It absorbs quickly and leaves my skin feeling soft and smooth without being greasy. I use it before my moisturizer, and it layers well with other products. I’ve noticed my skin looks more hydrated and feels more comfortable, especially on days when it feels dry or tired. Pros: very hydrating, lightweight, smooth texture, good for daily use Cons: a bit pricey for the size Overall, this is a great serum if you’re looking to improve hydration and keep your skin looking healthy. ... show more
Reviewed in the United States on April 11, 2026 by sandra M Cardenas
    • Great product!
Size: 1.01 Fl Oz (Pack of 1)
First week using this serum and wow, my skin feels amazing. I have been dealing with very dry skin lately that has been patchy and this serum is working its magic plumping and hydrating my skin. Definitely will be reordering this and the smell is wonderful too!
Reviewed in the United States on May 5, 2026 by Jodi
    • Hydrating serum that feels light and works well daily
Size: 1.01 Fl Oz (Pack of 1)
This serum has been a really good addition to a daily skincare routine. It feels lightweight, absorbs quickly, and does not leave a greasy or heavy feeling on the skin. I like that it focuses on hydration, helping the skin feel softer, smoother, and more refreshed after use. The combination of hyaluronic acid and vitamin B5 helps improve moisture and overall skin texture. It works well for both men and women and layers easily with other products. A great option if you want a simple, effective serum for everyday hydration and skin care. ... show more
Reviewed in the United States on April 11, 2026 by Embrace the Journey
    • Serum
Size: 1.01 Fl Oz (Pack of 1)
This serum is very hydrating and lightweight. It absorbs quickly and makes my skin feel plump and refreshed. I like using it before my moisturizer because it helps lock in hydration and gives my skin a healthy glow. It works well under makeup and doesn’t cause irritation. Great option for anyone looking to boost hydration. ... show more
Reviewed in the United States on February 6, 2026 by Susel Pérez
    • Sensitive, Normal to Dry Skin and this is the amazing set I bought
Size: 1.01 Fl Oz (Pack of 1)
Review Image by Jem
Review Image by Jem
I bought this 3 la roche posay set coz I want to lighten my face as am always expose cleaning our swimming pool everyday and florida weather made my skin darker. I dont use skincare coz im lazy and busy and has sensitive skin but I found this brand from my flight attendant friend coz her skin was amazing!!!and ddnt think twice to try bcoz of her! - Mela b3 - to lighten my face (day and night use) - Hyalu b5 - to hydrate my face and help with fine lines in my eyes, anti aging serum (day and night use) - Hydraphase- for dehydrated skin and dull complexion (day and night use) When I wrote this feedback its my 6th day using it and am so happy so far. No breakout, not affecting my skin, no stings, no weird side effects in my face, it feels really good in my face and my make up became awesome looking its not caky anymore and no more annoying lines from my foundation , thats when i found out my skin is normal to dry skin (i get caky and lines when im on foundation) and these set helps me a lot!!! Hoping to bring back my lighter face soon with mela b3!!! About the seal and authenticity I searched about it too I was bothered of not having seal so I made a research and found this •No, not every La Roche-Posay product is sealed some come simply in a box with no wrapping or seal. • Yes, some items feature protective elements like QR codes or holograms for authenticity. • Packaging styles can differ depending on the product type and region. If you’re ever unsure, you can usually check authenticity by scanning the QR code (when present) or verifying the product through their official website or app. Negative part, Its little pricey but so worth it!!! ... show more
Reviewed in the United States on August 7, 2025 by Jem
    • Holy hydration. Plump, smooth, and sensitive-skin friendly.
Size: 1.01 Fl Oz (Pack of 1)
I’ve been using La Roche-Posay Hyalu B5 Serum for a few weeks now and I’m honestly impressed. My skin tends to get dry and tight (especially in winter), and this serum makes my face feel immediately hydrated, soft, and noticeably plumper. The texture is lightweight and absorbs quickly without feeling greasy or sticky. It layers beautifully under moisturizer and makeup, and it hasn’t caused any irritation or breakouts (which is huge for me because my skin can be sensitive). After consistent use, my skin looks more smooth and refreshed, and some fine lines look less noticeable simply because my skin is so much more hydrated. A little goes a long way, so the bottle should last a while. Definitely a great product if you’re looking for hydration and a healthy glow. Highly recommend! ... show more
Reviewed in the United States on February 13, 2026 by Nicole Calling
    • La Roche-Posay Healy B5 serum the best of the best
Size: 1.01 Fl Oz (Pack of 1)
I have been using this serum for a few weeks and honestly I loved it very much it leaves the skin soft, luminous, moisturizes very well, it has a very rich smell and I have seen very good results, it is a very good quality product I highly recommended
Reviewed in the United States on February 27, 2026 by Heyling Arauz

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